Rocker cover gaskets - Which sealant/adhesive?

C

Classicus

New Member
I am replacing the above as at least one is leaking oil at the rear and probably has been doing so for many years. I am sure they are the originals and like the sump gasket I replaced a few weeks ago, have been there since the car was built. The replacements are of "oil compatable" rubber. However I am receiving conflicting advice as to the use of a sealant. The gaskets supplier says use just a smear of engine oil, the Repair Manual says use Bostick sealant and a man who had 35 Rovers tells me to use "High temperature RTV sealant" (silicon). What shall I do?
P.S. I forgot to mention it is great to see the forum up and running again!
 
If your replacements are the modern rubber type then you shouldn't need to use anything at all on the gaskets, maybe as you say a very thin smear of oil at the most.

If you had the original type of gaskets made of cork then you could use a thin smear of grease on those. RTV would be a bit OTT unless you were reusing the cork type of gaskets.
 
I would use the Bostick as recommended in the manual. I always used it on the cork gaskets, and on the rocker cover gaskets on Triumph 2000/2500, Toledo, Dolomite etc, which are made of the same material as the ones you've got now for the Rover.
They won't stay in place with engine oil or grease, and silicone just looks like a bodge. (Which it is.)
 
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